Just for the record, Storrs Olson's position is archosaur to bird instead of archosaur to ornithodiran to dinosaur to saurischian to theropod to neotheropod to tetanuran to avetheropod to coelurosaurian to tyrannoraptoran to maniraptoriforme to maniraptoran to avialan to pygostylian to ornithothoracine to ornithurine to bird. A lot has happened since 1999 and there are lots and lots of transitional species, including feathered dinosaurs that had not been discovered in 1999.
Label: Sarcastic